Bearing.



Y Patented Mar. 5, |90I. J. M. LAFFAS.

B E''B l N G (Application led Nov. 22, 1900,1-

(No Modell) .l wn

TN: Noam: PETER! on. Primo'nrruc!w wAsNluaTou. a. c.

f'.) The rollers ct and d may be regarded as UNITED STATES I JEAN MARIELAEEAs, oF LE vEsINET, FRANCE.

BEARING.

SPECIFICATION forming part of Letters Patent No. 669,120, dated March 5,1901.

Application filed November 22. 1900. Serial No. 37.395. (No model.)

To @ZZ whom it may concern.-

Be it known that I, .l EAN MARIE LAEEAs, civil engineer, a resident ofLe Vsinet, France, have invented new and useful Improvements in andConnected with Bearings, which improvements are fully ser forth in thefollowing specification.

This invention relates to roller-bearings in which the peripheralsliding friction is entirely eliminated and rolling friction issubstituted therefor.

Roller-bearings according to this invention are shown by way of examplein the accompanying drawings, in which- Figures l and 2 are respectivelyan end view and a horizontal section of a roller-bearing for atransmission-shaft the end of which bears against an abutment-screw.Fig. 3 is a longitudinal section of an axle-box fora road-vehicle. Fig.4 is a longitudinal section through the axis of an axle-box for arailwayvehicle.

From Fig. 1 it will be seen that when a journal A rotates in thedirection indicated by the arrow f a series of rollers a c' will rotatein the opposite direction, (indicated by the arrow constituting groups,each consisting of three rollers whose axes pass through the angularpoints of a triangle at right angles to the said axes. When the rollersc have completed a sufficient number of revolutions to make theirperipheral paths equal to the circumference of the journal A, therollers ct will have traversed a similar distance, which correspondsonly-to a portion of a bush or path B, secured in a plumber-block C. Atthe ends of the rollers there are arranged steel washers b b, behindwhich are placed felt washers c c', held in place by a nut Dand by anend nut D, that carries an abutment-screw fu.

In Fig. 3 the nuts D D are shown scarcely modified, especially the nutD; but the endwise abutment is supported by a row of balls d d, whichrun in a race arranged between a fixed part E, adjusted by nuts c g h,and a loose part E', that forms part of the internal movable peripheryof the wheel and is adj usted by the nut D and the externallyscrewedring i, felt washers c c being interposed to prevent the entrance ofdust.

ln Fig. 4 the arrangements at the end are shown somewhat modified,especially at the external end, for the sake of simplicity. The rollersc a c d' are arranged and held and operate in the manner hereinbeforedescribed between the journal A and the bush B and between the washers bb, the felt washers c c, and the nuts D and D'. The body of the box Grand its lower cover G' contain the internalroller arrangement, and thenut D', which, as well as the nut D, is provided with holes for screwingit. up, serves as an abutment.

Having now particularly described and ascertained my invention, Ideclare that what I claim is l. In a roller-bearing, the combinationwith a shaft or axle and a support or part having a circularbearing-opening formed therein, of two concentric groups of rollersinterposed between the shaft or axle and the inner wall of the circularopening, removable caps for closing the ends of the circular openingrespectively, metallic washers at opposite ends of the rollers, andyielding washers interposed between the metallic washers and the caps,both the metallic-and yielding washers being removably held in place bythe caps.

2. In a roller-bearing, the combination with a shaft or axle and asupport or part having a circular bearing-opening formed therein, of twoconcentric groups of rollers interposed between the shaft or axle andthe inner wall of the circular opening, caps for closing the ends of thecircular opening respectively, metallic washers at opposite ends of therollers, yielding washers interposed between the metallic washers andthe caps, and ball-bearings about the shaft or axle for receiving theend thrust thereof.

In testimony whereof I have signed this specification in the presence oftwo subscrib- ANTONIE FERNAND DE LA CALLE, EDWARD P. MACLEAN.

